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Finding the Fourth Proportional to 1,755.24, 2,645.39 and 1,755.24

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Solution

The fourth proportional to 1,755.24, 2,645.39 and 1,755.24 is: 2,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.24 : 2,645.39 = 1,755.24 : x
  2. Step 2: Convert to fraction form
    1,755.24/2,645.39 = 1,755.24/x
  3. Step 3: Cross multiply
    1,755.24x = 2,645.39 × 1,755.24
  4. Step 4: Simplify right side
    1,755.24x = 4,643,285.57
  5. Step 5: Solve for x
    x = 4,643,285.57/1,755.24
  6. Step 6: Final answer
    x = 2,645.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.